DOC AIRBUS | AMM A320FInstallation of the Flame Arrestor and of the Flange Assembly [CFMI]
TASK 72-56-00-400-003-A
Installation of the Flame Arrestor and of the Flange Assembly
1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
C. Expendable Parts
D. Referenced Information
3. Job Set-up
Subtask 72-56-00-860-052-A ** ON A/C NOT FOR ALL
Subtask 72-56-00-420-054-A ** ON A/C NOT FOR ALL
Subtask 72-56-00-410-061-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 02:39:56 UTC
Installation of the Flame Arrestor and of the Flange Assembly
1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.CP2101) | graphite grease |
| FIG.ITEM | DESIGNATION | IPC-CSN |
|---|---|---|
| 80 | GASKET SEAL | AIPC 72-56-00-02-010 |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 78-11-11-000-040-A | Removal of the Core Nozzle Assembly |
| TASK 78-11-11-400-040-A | Installation of the Core Nozzle Assembly |
| TASK 78-11-12-000-040-A | Removal of the Centerbody |
| TASK 78-11-12-400-040-A | Installation of the Centerbody |
Removal/Installation of the Flame Arrestor and Flange AssemblySubtask 72-56-00-860-052-A ** ON A/C NOT FOR ALL
A. Aircraft Maintenance Configuration
(1) On the center pedestal, on the ENG panel 115VU, make sure that a WARNING NOTICE(S) is in position to tell persons not to start the engine.
(2) On the overhead maintenance panel 50VU, make sure that the ON legend of the ENG/FADEC GND PWR/1(2) is off. Make sure that a WARNING NOTICE(S) is in position to tell persons not to energize the FADEC 1(2).
(3) Make sure that the core nozzle is removed (Ref. AMM TASK 78-11-11-000-040).
(4) Make sure that the centerbody is removed (Ref. AMM TASK 78-11-12-000-040).
4. Procedure(1) On the center pedestal, on the ENG panel 115VU, make sure that a WARNING NOTICE(S) is in position to tell persons not to start the engine.
(2) On the overhead maintenance panel 50VU, make sure that the ON legend of the ENG/FADEC GND PWR/1(2) is off. Make sure that a WARNING NOTICE(S) is in position to tell persons not to energize the FADEC 1(2).
(3) Make sure that the core nozzle is removed (Ref. AMM TASK 78-11-11-000-040).
(4) Make sure that the centerbody is removed (Ref. AMM TASK 78-11-12-000-040).
Subtask 72-56-00-420-054-A ** ON A/C NOT FOR ALL
A. Installation of the Flange Assembly
PRE SB CFMI 72-259
(1) Install the flange assembly (90) in position on the LPT frame.
(2) Lubricate the threads of bolts (70) with graphite grease (Material No.CP2101) .
(3) Attach the flange assembly (90) with thirty two bolts (70).
(4) TORQUE the bolts (70) to between 90 and 85 lbf.in (1.02 and 0.96 m.daN )
.
POST SB CFMI 72-259
(5) Install a new AIPC 72-56-00-02-010 GASKET SEAL (80) on the rear flange of the oil inlet cover.
(6) Install the flange assembly (90) in position on the LPT frame.
(7) Lubricate the threads of bolts (70) with graphite grease (Material No.CP2101) .
(9) TORQUE the bolts (70) to between 90 and 85 lbf.in (1.02 and 0.96 m.daN ).
END of SB CFMI 72-259
(10) Lubricate the threads of bolts (40) with graphite grease (Material No.CP2101) .
(11) Install the sleeve (60) in position on the flange assembly.
(12) Attach the sleeve (60) with three bolts (40) and washers (50).
(13) TORQUE the bolts (40) to between 110 and 100 lbf.in (1.24 and 1.13 m.daN ).
Subtask 72-56-00-420-055-A ** ON A/C NOT FOR ALL PRE SB CFMI 72-259
(1) Install the flange assembly (90) in position on the LPT frame.
(2) Lubricate the threads of bolts (70) with graphite grease (Material No.CP2101) .
(3) Attach the flange assembly (90) with thirty two bolts (70).
(4) TORQUE the bolts (70) to between 90 and 85 lbf.in (1.02 and 0.96 m.daN )
. POST SB CFMI 72-259
(5) Install a new AIPC 72-56-00-02-010 GASKET SEAL (80) on the rear flange of the oil inlet cover.
(6) Install the flange assembly (90) in position on the LPT frame.
(7) Lubricate the threads of bolts (70) with graphite grease (Material No.CP2101) .
CAUTION:
MAKE SURE THAT THE GASKET SEAL IS IN THE CORRECT POSITION ON THE REAR FLANGE OF THE OIL INLET COVER.
(8) Attach the flange assembly (90) with thirty two bolts (70). (9) TORQUE the bolts (70) to between 90 and 85 lbf.in (1.02 and 0.96 m.daN )
. END of SB CFMI 72-259
(10) Lubricate the threads of bolts (40) with graphite grease (Material No.CP2101) .
(11) Install the sleeve (60) in position on the flange assembly.
(12) Attach the sleeve (60) with three bolts (40) and washers (50).
(13) TORQUE the bolts (40) to between 110 and 100 lbf.in (1.24 and 1.13 m.daN )
. B. Installation of the Flame Arrestor
(1) Lubricate the threads of bolts (20) with graphite grease (Material No.CP2101) .
PRE SB CFMI 72-447
(2) Install the flame arrestor (30) in position on the flange assembly (90).
POST SB CFMI 72-447
(3) Install the flame arrestor (10) or (30) in position on the flange assembly (90).
END OF SB CFMI 72-447
(4) Attach the flame arrestor with six bolts (20).
(5) TORQUE the bolts (20) to between 110 and 100 lbf.in (1.24 and 1.13 m.daN ).
5. Close-up(1) Lubricate the threads of bolts (20) with graphite grease (Material No.CP2101) .
PRE SB CFMI 72-447
(2) Install the flame arrestor (30) in position on the flange assembly (90).
POST SB CFMI 72-447
(3) Install the flame arrestor (10) or (30) in position on the flange assembly (90).
END OF SB CFMI 72-447
(4) Attach the flame arrestor with six bolts (20).
(5) TORQUE the bolts (20) to between 110 and 100 lbf.in (1.24 and 1.13 m.daN )
. Subtask 72-56-00-410-061-A ** ON A/C NOT FOR ALL
A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Install the centerbody (Ref. AMM TASK 78-11-12-400-040).
(3) Install the core nozzle (Ref. AMM TASK 78-11-11-400-040).
(4) Remove the WARNING NOTICE(S).
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Install the centerbody (Ref. AMM TASK 78-11-12-400-040).
(3) Install the core nozzle (Ref. AMM TASK 78-11-11-400-040).
(4) Remove the WARNING NOTICE(S).